The drafting chair of good quality and what I expected to receive the seat is comfortable.  The ability to adjust the tension on the back spring to lean back works well and does lock when a firm position is needed.  This particular model is slightly taller in both the low and the fully raised position.  I have similar chair that I bought a few years ago that is a little lower which might be better for sitting in the lower position, more like a regular chair, but this one is better for getting the full height that I wanted for my stand up desk.